Assignee
Inventors
- Hiroaki Kumagai (13 patents)
- Takeshi Menjo (36 patents)
- Kazuo Kishino (59 patents)
- Masaaki Takahashi (136 patents)
- Rie Saito (21 patents)
- Jiro Ishizuka (34 patents)
- Hideo Kawamoto (46 patents)
- Unknown
US Patent 5608508 · Granted Mar 4, 1997